CN111981906A - Stainless steel wire for manufacturing cotton wool of bullet-proof vest and production process thereof - Google Patents
Stainless steel wire for manufacturing cotton wool of bullet-proof vest and production process thereof Download PDFInfo
- Publication number
- CN111981906A CN111981906A CN202010811065.XA CN202010811065A CN111981906A CN 111981906 A CN111981906 A CN 111981906A CN 202010811065 A CN202010811065 A CN 202010811065A CN 111981906 A CN111981906 A CN 111981906A
- Authority
- CN
- China
- Prior art keywords
- steel wire
- cotton wool
- stainless steel
- wire
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H1/00—Personal protection gear
- F41H1/02—Armoured or projectile- or missile-resistant garments; Composite protection fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/042—Manufacture of coated wire or bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/045—Manufacture of wire or bars with particular section or properties
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
- C21D3/02—Extraction of non-metals
- C21D3/06—Extraction of hydrogen
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0607—Wires
Abstract
The invention discloses a stainless steel wire for manufacturing cotton wool of a body armor and a production process thereof, and the stainless steel wire comprises a positioning woven layer, wherein a sealing layer is arranged on the inner wall of the positioning woven layer, filling cotton wool is filled in the inner side of the sealing layer, nine middle supporting columns are arranged on the inner side of the filling cotton wool, four finished steel wire bodies are fixedly arranged on the outer sides of the middle supporting columns in the filling cotton wool, each finished steel wire body comprises an inner steel wire, a plating layer and a heat-reducing coating, the surface of the inner steel wire is provided with the plating layer in the filling cotton wool, and the heat-reducing coating is arranged on the outer side of the plating layer. According to the invention, the heat treatment process is used among the multi-step treatment of the steel wire, so that the plasticity of the steel wire before deformation and the strength after drawing operation can be effectively improved, the use requirement of the body armor is further met, the uniform deformation of the steel wire is facilitated by controlling the reduction ratio in the single drawing process, and the finished product quality is higher.
Description
Technical Field
The invention relates to the technical field of steel wire production, in particular to a stainless steel wire for manufacturing cotton wool of body armor and a production process thereof.
Background
With the rapid development of social economy, the using amount of stainless steel is more and more, the alloy content of the stainless steel is high, the price is higher, but the service life of the stainless steel is far longer than that of other steel grades, the maintenance cost is low, and the stainless steel is the steel grade with the lowest using cost; the stainless steel has high recovery rate and little pollution to the environment, is a green and environment-friendly material for improving the environment and beautifying the life, and the stainless steel wire is an important variety in stainless steel product series and is mainly used as a raw material in the manufacturing industry. The economy of China currently takes the manufacturing industry as a support, so the consumption of stainless steel wires in China is higher than that of developed countries in proportion to the total consumption of stainless steel; stainless steel wires are required to be added for strength upgrading in the process of manufacturing the cotton wool of the body armor.
However, the existing production process of the stainless steel wire is too single to heat treatment of the steel wire, so that the steel wire is easy to have wounds in the process of drawing for many times, and the strength does not meet the requirement; thus, the existing requirements are not met, and a stainless steel wire for making cotton wool of body armor and a production process thereof are provided.
Disclosure of Invention
The invention aims to provide a stainless steel wire for manufacturing cotton wool of body armor and a production process thereof, and aims to solve the problems that the existing production process of the stainless steel wire in the background art is too single to heat treatment of the steel wire, so that the steel wire is easy to have wounds in the process of drawing for many times, the strength is not in line with the requirements and the like.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a stainless steel wire for making shellproof clothing cotton wool, includes the location and compiles the layer, the inner wall on location and compiles the layer is provided with the sealing layer, the inboard packing of sealing layer has the packing cotton wool, nine middle part support columns are installed to the inboard of packing cotton wool, the outside that the middle part support column is located the inside fixed mounting who fills the cotton wool has four finished steel wire main parts, finished steel wire main part includes inboard steel wire, cladding material and heat-reducing coating, the inside that the surface of inboard steel wire is located the packing cotton wool is provided with the cladding material, the outside of cladding material is provided with heat-reducing coating.
A stainless steel wire for making cotton wool of body armor and a production process thereof comprise the following steps:
the method comprises the following steps: selecting a raw material, namely a wire rod, for producing the steel wire, and further removing iron oxide scales on the outer surface of the wire rod, wherein the iron oxide scales can be prevented from damaging a die and the surface of the steel wire during drawing by adopting a chemical phosphorus removal mode;
step two: after chemical phosphorus removal and surface coating pretreatment, hydrogen in a steel base is removed in a low-temperature heating mode, specifically, a chain type drying furnace is adopted for drying operation within the temperature range of S1, and the running speed of a chain is controlled to be V1;
step three: after drying, the surface of the steel wire is coated and protected mainly by coating a lubricant, wherein the coating treatment is still needed after the coating, so that the drawing efficiency of the steel wire is improved
Step four: carrying out heat treatment on the steel wire in three states, specifically carrying out primary heat treatment on the steel wire raw material to eliminate internal stress; the semi-finished steel wire is dried and then is subjected to heat treatment again, so that the plasticity of the steel wire is improved; carrying out heat treatment on the finished product again after drawing forming, and adapting to delivery requirements and production specifications;
step five: copper plating operation is carried out on the surface of the steel wire after the semi-finished product is subjected to heat treatment, good lubricating conditions are created for drawing, electroplating treatment is selected according to the using conditions of the steel wire, and electroplating brass is adopted to cover the surface of the steel wire;
step six: after the treatment is completed, the steel wire is drawn by a winding drum of a wire drawing machine, a steel wire blank deforms through a die hole of a wire drawing die, the drawing frequency of the steel wire is controlled according to the drawing reduction rate of the steel wire, the cold working performance of the steel wire is reduced in the cold drawing process to cause the drawing effect to be poor, heat treatment needs to be carried out again, and then the reciprocating circular drawing operation can be realized;
step seven: and carrying out flaw detection treatment on the steel wire after drawing, ensuring the completeness of a coating on the surface of the steel wire, detecting the strength of the steel wire, removing products which are unqualified in test, recycling, carrying out coating treatment on qualified products, then carrying out spiral winding, and further carrying out packaging and warehousing.
Preferably, the finished steel wire body is spirally wound on the outer side of the middle support column, and a shielding wire core is arranged on the inner side of the middle support column.
Preferably, the plating layer is fixed on the surface of the inner steel wire through electroplating, and the plating layer is made of brass.
Preferably, the positioning woven layer and the filling cotton wool are connected through a sealing layer, and the outer surface of the sealing layer is provided with a hydrophobic coating.
Preferably, the temperature S mentioned in step two is 200-400 ℃ and the V mentioned in step five is 12/min.
Preferably, the wire-drawing die mentioned in the sixth step adopts water cooling to cool down in the repeated drawing gap.
Preferably, the strength of the steel wire in the seventh step meets the requirement of high strength of 1960-3135 MPa.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the heat treatment process is used among the multi-step treatment of the steel wire, so that the plasticity of the steel wire before deformation and the strength after drawing operation can be effectively improved, the use requirement of the body armor is further met, the uniform deformation of the steel wire is facilitated by controlling the reduction ratio in the single drawing process, and the finished product quality is higher.
Drawings
FIG. 1 is a schematic view of a partial structure of a steel wire assembly according to the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of a wire assembly section according to the present invention;
FIG. 3 is a schematic view of a partial cross-sectional structure of the finished steel wire body of the present invention;
FIG. 4 is a flow chart of the overall production process of the present invention;
FIG. 5 is a diagram of the heat treatment process steps of the present invention;
FIG. 6 is a schematic view of the operational specifications of the wire drawing process of the present invention.
In the figure: 1. a sealing layer; 2. positioning a weaving layer; 3. filling cotton wool; 4. a middle support column; 5. finishing the steel wire main body; 6. an inner steel wire; 7. plating; 8. and (5) reducing the heat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 6, an embodiment of the present invention includes: the utility model provides a stainless steel wire for making shellproof clothing cotton fibre, weave layer 2 including the location, the inner wall of location weave layer 2 is provided with sealing layer 1, the inboard packing of sealing layer 1 has packing cotton fibre 3, nine middle part support columns 4 are installed to the inboard of packing cotton fibre 3, the inside fixed mounting that the outside of middle part support column 4 is located packing cotton fibre 3 has four finished steel wire main parts 5, finished steel wire main part 5 includes inboard steel wire 6, cladding material 7 and cooling coating 8, the inside that the surface of inboard steel wire 6 is located packing cotton fibre 3 is provided with cladding material 7, the material of cladding material 7 is brass, can improve the lubricated effect of steel wire at the drawing in-process, the outside of cladding material 7 is provided with cooling coating 8.
A stainless steel wire for making cotton wool of body armor and its production process, characterized by: the method comprises the following steps:
the method comprises the following steps: selecting a raw material, namely a wire rod, for producing the steel wire, and further removing iron oxide scales on the outer surface of the wire rod, wherein the iron oxide scales can be prevented from damaging a die and the surface of the steel wire during drawing by adopting a chemical phosphorus removal mode;
step two: after chemical phosphorus removal and surface coating pretreatment, hydrogen in a steel base is removed in a low-temperature heating mode, specifically, a chain type drying furnace is adopted for drying operation within the temperature range of S1, and the running speed of a chain is controlled to be V1;
step three: after drying, carrying out coating treatment on the surface of the steel wire, and mainly protecting the steel wire by coating a lubricant, wherein the coating treatment is still required after plating, so that the drawing efficiency of the steel wire is improved;
step four: carrying out heat treatment on the steel wire in three states, specifically carrying out primary heat treatment on the steel wire raw material to eliminate internal stress; the semi-finished steel wire is dried and then is subjected to heat treatment again, so that the plasticity of the steel wire is improved; carrying out heat treatment on the finished product again after drawing forming, and adapting to delivery requirements and production specifications;
step five: copper plating operation is carried out on the surface of the steel wire after the semi-finished product is subjected to heat treatment, good lubricating conditions are created for drawing, electroplating treatment is selected according to the using conditions of the steel wire, and electroplating brass is adopted to cover the surface of the steel wire;
step six: after the treatment is completed, the steel wire is drawn by a winding drum of a wire drawing machine, a steel wire blank deforms through a die hole of a wire drawing die, the drawing frequency of the steel wire is controlled according to the drawing reduction rate of the steel wire, the cold working performance of the steel wire is reduced in the cold drawing process to cause the drawing effect to be poor, heat treatment needs to be carried out again, and then the reciprocating circular drawing operation can be realized;
step seven: and carrying out flaw detection treatment on the steel wire after drawing, ensuring the completeness of a coating on the surface of the steel wire, detecting the strength of the steel wire, removing products which are unqualified in test, recycling, carrying out coating treatment on qualified products, then carrying out spiral winding, and further carrying out packaging and warehousing.
Further, finished steel wire main part 5 is the outside of heliciform coiling 4 at middle part support column, and the inboard of middle part support column 4 is provided with the shielding wire core, is convenient for improve holistic shielding effect.
Further, the plating layer 7 is fixed on the surface of the inner steel wire 6 through electroplating, and the plating layer 7 is made of brass, so that the lubricating effect of the steel wire in the drawing process can be improved.
Furthermore, the positioning weaving layer 2 is connected with the filling cotton wool 3 through the sealing layer 1, and the outer surface of the sealing layer 1 is provided with a hydrophobic coating, so that the waterproof capacity of the whole surface is improved.
Further, the temperature S1 in step two is 200-400 ℃, and the V1 in step five is 12/min.
And further, the wire-drawing die mentioned in the sixth step adopts water cooling to reduce the temperature in the repeated drawing gap.
Furthermore, the strength of the steel wire in the seventh step meets the requirement of high strength of 1960-3135 MPa.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A stainless steel wire for making body armor batting, comprising a positioning braid (2), characterized in that: the inner wall of location weaving layer (2) is provided with sealing layer (1), the inboard packing of sealing layer (1) has packing cotton fibre (3), nine middle part support columns (4) are installed to the inboard of packing cotton fibre (3), the inside fixed mounting that the outside of middle part support column (4) is located packing cotton fibre (3) has four finished steel wire main parts (5), finished steel wire main part (5) are including inboard steel wire (6), cladding material (7) and heat-reducing coating (8), the inside that the surface of inboard steel wire (6) is located packing cotton fibre (3) is provided with cladding material (7), the outside of cladding material (7) is provided with heat-reducing coating (8).
2. The stainless steel wire for making cotton wool of body armor and the production process thereof according to claim 1, wherein: the method comprises the following steps:
the method comprises the following steps: selecting a raw material, namely a wire rod, for producing the steel wire, and further removing iron oxide scales on the outer surface of the wire rod, wherein the iron oxide scales can be prevented from damaging a die and the surface of the steel wire during drawing by adopting a chemical phosphorus removal mode;
step two: after chemical phosphorus removal and surface coating pretreatment, hydrogen in a steel base is removed in a low-temperature heating mode, specifically, a chain type drying furnace is adopted for drying operation within the temperature range of S1, and the running speed of a chain is controlled to be V1;
step three: after drying, carrying out coating treatment on the surface of the steel wire, and mainly protecting the steel wire by coating a lubricant, wherein the coating treatment is still required after plating, so that the drawing efficiency of the steel wire is improved;
step four: carrying out heat treatment on the steel wire in three states, specifically carrying out primary heat treatment on the steel wire raw material to eliminate internal stress; the semi-finished steel wire is dried and then is subjected to heat treatment again, so that the plasticity of the steel wire is improved; carrying out heat treatment on the finished product again after drawing forming, and adapting to delivery requirements and production specifications;
step five: copper plating operation is carried out on the surface of the steel wire after the semi-finished product is subjected to heat treatment, good lubricating conditions are created for drawing, electroplating treatment is selected according to the using conditions of the steel wire, and electroplating brass is adopted to cover the surface of the steel wire;
step six: after the treatment is completed, the steel wire is drawn by a winding drum of a wire drawing machine, a steel wire blank deforms through a die hole of a wire drawing die, the drawing frequency of the steel wire is controlled according to the drawing reduction rate of the steel wire, the cold working performance of the steel wire is reduced in the cold drawing process to cause the drawing effect to be poor, heat treatment needs to be carried out again, and then the reciprocating circular drawing operation can be realized;
step seven: and carrying out flaw detection treatment on the steel wire after drawing, ensuring the completeness of a coating on the surface of the steel wire, detecting the strength of the steel wire, removing products which are unqualified in test, recycling, carrying out coating treatment on qualified products, then carrying out spiral winding, and further carrying out packaging and warehousing.
3. The stainless steel wire for making body armor batting according to claim 1, wherein: the finished steel wire main body (5) is spirally wound on the outer side of the middle supporting column (4), and a shielding wire core is arranged on the inner side of the middle supporting column (4).
4. The stainless steel wire for making body armor batting according to claim 1, wherein: the plating layer (7) is fixed on the surface of the inner side steel wire (6) through electroplating, and the plating layer (7) is made of brass.
5. The stainless steel wire for making body armor batting according to claim 1, wherein: the positioning weaving layer (2) is connected with the filling cotton wool (3) through a sealing layer (1), and a hydrophobic coating is arranged on the outer surface of the sealing layer (1).
6. The stainless steel wire for making cotton wool of body armor and the production process thereof according to claim 2, wherein: the temperature S1 mentioned in the second step is 200-400 ℃, and the V1 mentioned in the fifth step is 12/min.
7. The stainless steel wire for making cotton wool of body armor and the production process thereof according to claim 2, wherein: and the wire-drawing die mentioned in the sixth step adopts water cooling to reduce the temperature in the repeated drawing clearance.
8. The stainless steel wire for making cotton wool of body armor and the production process thereof according to claim 2, wherein: the strength of the steel wire in the seventh step meets the requirement of high strength of 1960-3135 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010811065.XA CN111981906B (en) | 2020-08-13 | 2020-08-13 | Stainless steel wire for manufacturing cotton wool of bullet-proof vest and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010811065.XA CN111981906B (en) | 2020-08-13 | 2020-08-13 | Stainless steel wire for manufacturing cotton wool of bullet-proof vest and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111981906A true CN111981906A (en) | 2020-11-24 |
| CN111981906B CN111981906B (en) | 2023-03-24 |
Family
ID=73435478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010811065.XA Active CN111981906B (en) | 2020-08-13 | 2020-08-13 | Stainless steel wire for manufacturing cotton wool of bullet-proof vest and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111981906B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923811A (en) * | 2021-01-21 | 2021-06-08 | 中国科学院力学研究所 | Receiving device for gas detonation driven ultra-high-speed emission |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05332699A (en) * | 1992-05-29 | 1993-12-14 | Shiro Miyazaki | Material for armor plate and manufacture thereof |
| US5472769A (en) * | 1993-12-10 | 1995-12-05 | American Institute Of Criminology International Corp. | Soft body armor material with enhanced puncture resistance comprising at least one continuous fabric having knit portions and integrally woven hinge portions |
| CN2302497Y (en) * | 1997-04-22 | 1998-12-30 | 钱文斌 | Steel flexible multi-function protection garment |
| US5883018A (en) * | 1996-02-01 | 1999-03-16 | N.V. Bekaert S.A. | Stab-resistant insert for protective textile |
| US6571677B1 (en) * | 2002-02-08 | 2003-06-03 | Kamaljit S. Kaura | Ballistic protective plate |
| US6581212B1 (en) * | 1998-09-16 | 2003-06-24 | Adtex As | Protective garment |
| WO2004092424A1 (en) * | 2003-04-16 | 2004-10-28 | Katsuhiko Yamada | Heat treating method for steel wire |
-
2020
- 2020-08-13 CN CN202010811065.XA patent/CN111981906B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05332699A (en) * | 1992-05-29 | 1993-12-14 | Shiro Miyazaki | Material for armor plate and manufacture thereof |
| US5472769A (en) * | 1993-12-10 | 1995-12-05 | American Institute Of Criminology International Corp. | Soft body armor material with enhanced puncture resistance comprising at least one continuous fabric having knit portions and integrally woven hinge portions |
| US5883018A (en) * | 1996-02-01 | 1999-03-16 | N.V. Bekaert S.A. | Stab-resistant insert for protective textile |
| CN2302497Y (en) * | 1997-04-22 | 1998-12-30 | 钱文斌 | Steel flexible multi-function protection garment |
| US6581212B1 (en) * | 1998-09-16 | 2003-06-24 | Adtex As | Protective garment |
| US6571677B1 (en) * | 2002-02-08 | 2003-06-03 | Kamaljit S. Kaura | Ballistic protective plate |
| WO2004092424A1 (en) * | 2003-04-16 | 2004-10-28 | Katsuhiko Yamada | Heat treating method for steel wire |
Non-Patent Citations (1)
| Title |
|---|
| 李伟等: "超高强度镀锌钢丝生产工艺研究", 《金属制品》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923811A (en) * | 2021-01-21 | 2021-06-08 | 中国科学院力学研究所 | Receiving device for gas detonation driven ultra-high-speed emission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111981906B (en) | 2023-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101623719B (en) | Method for manufacturing stainless steel heat transfer pipe of nuclear heat exchanger | |
| CN107442596B (en) | A kind of steel cord production method | |
| CN101716715B (en) | Processing method of titanium and titanium alloy wires | |
| CN111981906B (en) | Stainless steel wire for manufacturing cotton wool of bullet-proof vest and production process thereof | |
| CN102517941A (en) | Production process of contact net anchorage steel wire rope | |
| CN105583271B (en) | Vehicle body Aluminum Alloy Tube solid solution-bending-age forming device and method | |
| CN101071662A (en) | Copper cladding aluminium wire, copper cladding aluminium pipe production process and its equipment | |
| CN102975422A (en) | High-strength steel wire, preparation method of high-strength steel wire and super-high-strength steel wire rope for conveyer belt | |
| CN102103906A (en) | Method for preparing copper-coated aluminium composite material | |
| CN102233364B (en) | Martensite air valve steel bar production method | |
| CN112439799B (en) | Production method of ultra-fine and ultra-high-strength synchronous belt steel cord | |
| CN103495613A (en) | Production process and drawing equipment of phi-5.0mm 1960MPa super-strength steel wires | |
| CN107377655A (en) | A kind of steel wire drawing system of processing of efficient energy-saving | |
| CN102489505A (en) | Cold-rolled steel strip and production method thereof, and anode plate material for electric dust removing device | |
| CN102764787B (en) | Solder cooling device for extruding-rolling on-line automatic production line | |
| CN202258554U (en) | Equipment for continuously producing copper flat wire in manner of post-drawing precision rolling | |
| CN110828023A (en) | Soft aluminum alloy wire core for wind power tower barrel torsion cable and preparation method thereof | |
| CN209654770U (en) | A kind of steel wire that sebific duct fatigue resistance can be improved and its rubber hose of preparation | |
| CN202933963U (en) | Solder cooling device for extruding-rolling on-line automatic production line | |
| CN113000618B (en) | Manufacturing method of monofilament steel cord and steel wire stress relieving device | |
| CN205211496U (en) | - kind be used for producing stranding machine of cable | |
| CN201552190U (en) | Water-tank wire drawing machine with horizontal loop diameter correction system | |
| CN108630354A (en) | A kind of cable manufacturing process | |
| CN204842456U (en) | Cold tandem mill | |
| CN209935541U (en) | Non-sliding double-head large drawing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |